moon, calculations and web pages

Hello,

I'm an amateur photographer.

I was interested in the moon, moonrise/moonset, position in the sky and
phases.

So I picked up a copy of "Practical Astronomy with your Calculator", and
found that this wasn't so easy. Two days later I've converted most of the
time and co-ordinate systems to javascript and can find out where the moon
is and so much more. This is not highly accurate but most should be accurate
to within a few seconds and some to a few minutes.

I'll write a web page for this shortly and was wondering what if any of
this would be of interest.

Is anyone interested in ecliptic-equatorial-horizon conversions?

Degrees/minutes/seconds or fractional degrees?

What about local-GMT-GST-LST? The reverse?

Moonrise, moonset and phases at any given time? In days, degrees or fraction
(for phase)?

Bright limb angles?

Planetary and solar positions?

A few stars? which? Option to plug in right ascension and declination and
see where?

Sunrise/sunset?

All these would be done client side, no waiting for a web page to come
back. I was thinking of a 180 horizon view with a choice of direction. Click
on an object and it would give co-ordinates. Would work in IE5+, NS7 or
Opera 7 although the calculations work in NS4.

Any feedback before I glop this together would be helpful. I don't even own
a telescope!

Cheers,
Jeff